Folding-machine.



W. F. LAUTENSCHLAGER.

FOLDING MACHINE.

APPLICATION FILED DEC.4. I915- Patented. Feb. 5, 1918 2 SHEETS-SHEET l.

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'FOLDING MACHINE.

APPLICATION FILED nag-4,191

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To all whom it may concern: I

Be it known that l, "WiLLIA F. LAUTEN- SOHLAGER, a citizen of the UnitedStates, re siding at Cincinnati. in the county of Harm ilton and Stateof Ohio, have invented, certain new and useful Improvements inFolding-lvlachines, of which the following is a specification.

My inven [on is applicable in foldin inachines for folding the marginsof open or closed Vamps, quarters, foxings, tongues and other parts ofshoe uppers, and other fiexih'lc material used, for instance, in themenu" facturc of gloves, pocketbooks and other articles, and isapplicable for-operation on leather, cloth and other" fahtics.

in folding the margin of flexible material it is usual to; apply anarrow band of cement to the margin lengthwise of the margin, so thatwhen the fold of the margin is laid upon the body of the margin a layeror layers of cement shall be interposed between the fold andthe body forthe purpose of holding, the fold of the margin in folded relation. Theobject of time cementing the fold to the body of th margin is tomaintain the fold'in contact with the body while the material is passingthrough the various stages of operation thereon in its course throughthe factory for foin ing the finished product.

The folding of the margin is usually accomplished by machinery employingstephy-step or intermittent feeding movements for feeding themargin ofthe material past snipping, folding and fold-pressinginstruinentalities.

' The itolds of the margins heretofore folded on machines of thischaracter have frequently been subject to the objection that the inneredges oi? the folds would rise from the bodies of the margins, whichwould make the subsequent operations upon the margins diflicult, andalsoresult in an inferior product for the reason that the folds of themargins thus rising from the bodies of the margins would causeunnecessary and undesirable thickness or hulkiness oi: the margins.

It is the object of niy invention to provide a steohy-st'ep foldingmachine employing novel told-pressing means whereby equal pressurethroughout the fold of the margin is assured; and further to provideafolcl' ing machine employing told-pressing means wherehypres'sui'e uponthe inner edge of the Specification of Letters Patent.

' Application filed December l, ions. Serial m. eaoev.

folded margin is assured in order to press said inner edge of the foldfirmly upon the body of the fold, whereby the fold is maintainedcemented to the body during suhse-- quent operations upon the flexiblematerial. It is a further object of my invention to provide astep-hy-step folding machine em-- ploying a pivoted fold-presserarranged to yield on its pivot during the pressing lune I tion in adirection transverse to the plane of its pressing-face and to heoperated-Joy a force applied in a direction transverse to its yieldinmovement; further to provide means or mounting and operating the pivotedfold-presser to insure a yielding move ment of the fold-pressercrosswise on its pivot, while pressing the margin, at substan tiallyright angles to the plane of the pressing-face of the foldresser;further, to provide a yieldahle iold presser with a pressingface-apivot, and an operating guide, with the walls of the operating guide atsulostan tially right angles to said pressingdace, and further saidpivot located substantially at the point of intersection of the-sides ofsaid right angle; and, further to provide an oscillating arm havingslide-connection with said operating guide so arranged that a right lineat right angles to said pressing tace and parallcl to said operatingguide intersects saiel lati'ng' armwhen said. pressing-face is 111pressing relation. The invention will he" further readily un- (lei-stoodfrom the following description and claims, and from the drawings, inwhich latter: Figure 1 is a side elevation of so much of a foldingmachine as is necessary to illustrate my invention.

Fig. .2- is an end elevation of the same. i Fig. 3 is a plan view of thesame, partly hrolten away, Fig. 4L. is a rear end elevation of the opensting means for the fold-presser.

Fig. 5 is a side elevation of the operating means for the fold-pressenthe fold-presser being shown in section on the line 5-5 of Fig. 3, inconnection with a piece of flexible material, and in the relation inwhichtho I pressing function, with the presser shifted with relation toits pivot.

Fig, 7 is a side elevation of the same vieg ved from the side oppositeto that shown in ig. 6.

Fig. 8 is a vertical section of the same, taken on the line 8-7 8 ofFig. 6.

Fig. 9 is a diagrammatic representation showing the relations of theparts at the completion of the pressing function of the fold-presserwhen there is 'po work in the machine; and, i

Fig. 10 is a similar view of the parts showing their relations upon thecompletion of the pressing of the told when there is work in themachine,

I have exemplified my invention as employed in a folding machine such asshown, described and claimed in my application for Letters Patent of theUnited States on improvements in folding-machines, Serial No. 634,485filed June 21 1911.

My present invention is an improvement upon the devices shown, describedand claimed, in my application Serial No. 46,520,

filed August 20, 1915.

In the present exemplification of my ill-z" vention the main frame ofthe machine represented at 11.

'"lhere is a suitable matonal-support 12 having a material sup portingsurface 13.

lThe step-hyestep or intermittent feeding movements may be accomplishedby means of a feerli1ig-foot14 which coacts with a suitable feed-roll15. 16 is a shipping knife which is arranged to reciprocate by suitable,means so as to snip the folded margin, that is, provide it with crossincisions suitably spaced apart, for instance,- to correspond with thedistances of the step-by-step. feeding: movements. The feeding meansintermittently feed the margin being folded past a suitable foldingdevice, exemplified as a folding block 17 having a plow-shaped or curvedfolding face 18, for curling the margin to be folded preparatory to theaction thereon by the pressing-device, a presserfoot19 being-arranged topress upon the material between the v interims of feeding movementsthereof, all as more fully shown and described in my aforesaidapplications. inslanced as'a-n-exemplification and not as a limitation.

The foldresser, exemplified at 21, is provided with a pressing-face 22,which coacts with an anvil 23, shownas part of the mate rial-supportingface .13, for pressing the. fold 24 upon the body 2505 the margin of theflexible material 526 being. folded. The

'mcetin faces of the fold and body of the margin are provided with asuitable hand nth-cement which extends lengthwise of the 'h'iargin. i I

-The anvil has a pressure'fece with -which the presdng-tacegfi coects.This -37 of the fold-presser.

Leeaoeo pressuxeface may. be horizontal, as shown, or placed at anydesired angle with relation to the lhorizontal, or be in verticalposition, and'it may be parallel with the material support prpper, or atan angle thereto, as

may be desired.

In the present cxemplification, the fold presser is provided with apivot-slot 31, the major axis and side walls of which are ex 'emplifiedas parallel with each other and at right angles to the pressing-face 22.The fold-presser is arranged to normally oscillate about a pivot 32. Thepivotal axis of the pivot is in substantially the plane extended of thepressure-face 27 of the anvil.

The pressing-face of the fold-presser is in ;The body of thefold-prcsscr is arranged to move crosswise on its pivot, and means foroscillating the fold-prcsser are provided which apply a moving force tothe foldpresser exerted in a direction crosswise of its yieldingmovement whereby the foldpresser is tree to yield on its pivotal axis,the construction being such preferably that when the fold-presser is atthe point-of.

completion of its pressure movement its pressing-face is parallel withthe coacting face of the anvil regardless of the extent of the yieldingmovement of the foldprcsser.

I have exemplified the operating means for the fold-presser ascomprising an operating guide exemplified as a slot 36 in the tail theguiding walls of the operating guide being shown at substantially rightangles to the plane of the pressing-fees 22.

A lever 39 has a bearing 40 about a shaft 41 located inbearings 42 ofthe frame. One arm 43 of the lever 39 has operating connection withthe-guide-slot 36, exemplitid as a slide-block 44 reciprocating in the piidcslot and connected with the arm 43 by means of a pin 45 journaledtherein and located in a hearing 46 of the arm 43.

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nineteen The bearings 40, and ere preferably comparatively long bearingsso as to tran m t oscillating motion to the fold-presser without bindlngof the parts.

the present instance by means of a helical spring 61 exerting pressurebetween the -foldresser and the bushing St for normally resilientlyholding the folapreseer downwardly, that is, towercl the coacting faceof the anviL The spring alsoniainteins the parts in firm operetiverelation (luring operation. The spring is shown re eeived in a bore 63oi the told-presser and in a bore 62 ct an adjusting bolt fitacijustably threadetl in the threaded bore 63, the turning of the boltadjusting the tension of the spring, The inner end of the spring 15shown received in'the pivotelot 31 of the toltl-preeser.

v JVhen the pressing-terse is at its point not closest normal approachto the coacting face of the anvil it is preferably parallel with antibut slightly spaced from said co acting face a distance slightly lessthan the thickness of the thinnest material it is do erred to press.

When material is pressml between the pressing-face and the coacting faceof the anvil, the pressing-face will yield with relation to saidcoactinp; face a distance determined by the thickness oi the foldedmarginbeingpresserl. The thicker this folded margin is, the greater willhe the yield of the tololpresser, the pressingface of thefold-prcsserbeing however par.- allel with the coactinp; face of theenvil at the completion of its pressure movement regardless of'itsdistance from the coecting face of the anvil. L

The fol l-presser "yields crosswise on its pivot according to thethickness of the foldecl margin being pressed, this yield causing ashifting of theoperating connection berepresents the axis oi the pin 45,and the,

point d represents the normal position of the pivot 32 with relation tothe 'it'olzl-presser, when the pressing-te zo 22 ot the felt prcsscr isat its point. of i'iorniel closest op" preach to the enacting face 2'?of the anvil, in the absence of material "between said faces. it will henoticel that when these faces are in coacting relation, thepoints o tanal (Z are in a right line which is at right angles to saicl faces, thepoint a? being at substantially the point of; intersection between thesides of saicl rightangle,

Referring now to Fig. it), Which represents the relation of the partsassuming that e comparatively thick fOltlQLl margin is being rowedbetween the pressing-face 22 anal its enacting face 27 of the anvil, itwill be noted that the normal point a, representthe normal relation ofthe pivotal axis to the foltl-prcsser, separated from the point (2representing the assumed or operatiive pivotal axis of the folgl'presserin the relations statccl, when em loying; the present enemplification,and that the operative connection between the slide-block it and theslot 36 has shifted to a corresponding extent, represented by theseparation of the points Z10 in lit The pressing-face 22 and itscoactinq envilotace ere parallel, when they are in press inn relation,regardless of their extent of separation, so that pressure is insuredupon the entire Width of the fold of the margin,

whereby the inner edge '35 of the fold of the margin is pressed uponthe. body of the margin with suflicient pressure to maintain adhesion bymeans oi the cement therebetween, so as to prevent separation of thefold fromv the bodly of the margin during the subsequent course of thematerial in its steps of manufacture, compression being; also @X-Vertedl upon the bead 66 of the fold for insuring'a thin fold-edge, theinitial pressurecontact of the pressinglace being; upon said fold-edge.

Having thus fully describeci my invention, What ll claim as new anddesire to secure by Letters Patent, is:

1. In combine-ti u, an anvil having a work supporting surfac pivotalconnection about which it may be oscillated to engage Work on saidanvil, means adapted to oscillate said folchpresser to cause the same topress the "Work upon the anvil, and means comprising sai pivotal.connection adapted to yield to permit a movement of said f0l l-presserin a clirecsaid folrl-presser oscillates to press the Work,

a gnirle for saiol pivot extenclinp; at substam tial right anglestosaicl pressing-face along which saicl fold-presser-yieicls, anti meansfor oscillating said iolcl-presser by a force applierl to saicltohl-presser in a direction a :tolctpresser having a l transverse to thedirection in which said guide extends.

3. In combination, a pivoted fold-presser having a pressing-face, apivot about which said f0ld-presser oscillates topress the Work, I D

rial, the combination 0t an anvil having a a guide for said pivot atsubstantial right angles to said pressing-face along which saidfold-presser yieldand means for oscillating said fold-presser by a forceapyieldable during the pressing movement 1n plied to. said fold-pressera direction transverse to the direction in which said guide extends,said last named means including shiita'ble means shiftable with theyielding movement of said fold-presser. i

In a-pressing device for flexible material, the combination of an anvil,a fold: presserhaving a pressing-face coacting'with said anvil, pivotabout which said foldpresser oscillates to press the Work, a guide forsaid pivot extending transversely to said pressing-face along which saidfold-presser yields, and means for oscillatingsaid fold pressercomprising a rocker-arm having a slide-connection 'W1th said'fold-presser extending inthe general "direction in which1ts'pivotdur1ng ll'S pressing movement said pivot-guide extends.

5 In a pressing device for flexible material, the combination of ananvil, a yieldable foldpresser having a pressing-face which coacts withsaid anvil, a pivot about which: said fold-presser oscillates to pressthe Worka 'nide' for said 'iivot extcndin I w 7 at substantia rightangles to said pressingfaoe, an operating'means' for said foldpresser'andoperative connection between said operating means and saidfoldresser comprising a guide" substantially" parallel With-saidpivot-guide. I

6.111 a pressing device for flexible material, the combination of ananvil, a yieldable fold-Presser having a. pressing-face co acting withsaid anvil, a pivot therefor, said fold-presser providedavith a slotabout said pivot extending at substantial right angles to saidpressing-face, an oscillating arm, and a slide-connection between saidarmand fold-presser, said slide-connection being substantially. in aright line intersecting said pivot and the axis of oscillation of said.inaterlal, the combination of an anvil, a PIVOT, having its centerlylng HLQPPI'OXI:

said anvil, and means for'rockingsaid foldpresser oomprising arocker-arm,there being an operating guide between said rockere arm andfold-presser extending substantially parallel to saidHpivot-slot and. toa right line intersecting .sa-id pivot and the axis of said rocker-armwhen said pressing face is in pressing-relation throughout the extent ofseparation of said pressing-face pressing-face, a pivoted fold-presserhaving a pressing-face coacting with said press- 1ng-face of said anvil,said fold presser a direction transverse to the planes of saidpressing-faces, and means for rocking said "fold-presscr to press thework applying an operating force in a direction transverse to saidyielding movement, whereby said pressing-faces areparallel when infold-pressing relatlon throughout variations in distance between saidpressing-faces when in foldtransverse to the plane of its pressing-face,and operating means for said iold-presser applying an operating forcethereto in a direction transverse to the yielding movement of saidfold-presser during its press.- ing' movement, I I v 10. In a foldingmachine for flexible material, the combination of intermittently actingmaterial-feeding means, snipping means, folding means, and fold-pressingmeans comprising a pivoted fold-presser having a fold-pressing face,said fol l-presseryicldable on its pivot during its pressing movementtransverse to the plane of its pressingface, and operating means forsaid foldpresser'applying an operating force thereto in a directiontransverse to the yielding movement of said fold-presser during itspressing movement,said last-named means comprising a part connected tosaid foldpresser and shiftable lengthwise. of said niatelythe same planeas the pressing-face I ing the pressing movement in.order that thepressing-face of the said fold-presser at the conclusion of its pressingmovement may lie substantially parallel with the rcssinE- face of saidanvil, irrespective of t e thic ness of the material being pressed, andmeans for operating said oldresser by 11p piying an apemting farcethemfio 211 3 him substantially iZFfiIlSVEFSE to the diraction 01 saidyielding mavmmnt In wmbiina'tian faldwmssw imam a pressing fame and apivotal cnnnectinn amul; which it moves flwward and from pressingposition, $53M hid-piesmr hazing yieldable at said pivmml connection ina. diremzion transverse t0 the plane 0f midi 1G 'ressinp' face and meansfor nscillating o d said fieldresser applying an wmamting fmce.thexi'elto in a. fins) irxmsverse to its db reciimn 0% yield intastinimny 'wl'lereoif I have hereunto 2 5 my mum, in the, presence of'itv'o subscribing Witnesses.

WK LUIS);v I3. LAU'EE 153G -ILAG'IU.

